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How do I know that the UICollectionView has been loaded completely?
...
// In viewDidLoad
[self.collectionView addObserver:self forKeyPath:@"contentSize" options:NSKeyValueObservingOptionOld context:NULL];
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change...
How to use SSH to run a local shell script on a remote machine?
...note that with single quotes around the terminator (<<'ENDSSH'), the strings will not be expanded, variables will not be evaluated. You can also use <<ENDSSH or <<"ENDSSH" if you want expansion.
– maackle
Jun 18 '13 at 5:38
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Create new user in MySQL and give it full access to one database
..., if mysql user has no password or just press "[Enter]" button to by-pass. strings surrounded with curly braces need to replaced with actual values.
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How to initialise memory with new operator in C++?
...; i < 10; i++)
{
p[i] = 0;
}
Using std::memset function from <cstring>
int* p = new int[10];
std::memset(p, 0, sizeof(int) * 10);
Using std::fill_n algorithm from <algorithm>
int* p = new int[10];
std::fill_n(p, 10, 0);
Using std::vector container
std::vector<int> v...
Circle drawing with SVG's arc path
... write 0.0001 to make it work. If you're looking for where to put the path string, look at Paths on MDN.
– TWiStErRob
May 10 '16 at 13:42
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Is Response.End() considered harmful?
...r("Cache-Control", "no-cache")
// Write the data as binary from a unicode string
Dim buffer As Byte()
buffer = System.Text.Encoding.Unicode.GetBytes(csv)
Response.BinaryWrite(buffer)
// Sends the response buffer
Response.Flush()
// Prevents any other content from being sent to the browser
Respons...
Pattern to avoid nested try catch blocks?
...should not throw exceptions unless they access external resources or parse strings or something. Anyway in the worst case follow the TryMethod style (like TryParse()) to encapsulate exception logic and make your control flow maintainable and clean:
bool TryCalculate(out double paramOut)
{
try
{...
How do I find the stack trace in Visual Studio?
...the callers of the objects that throws an unhandled exception. Is there a hidden option to make it useful? Perhaps you can expand on your answer to provide examples.
– James
Jan 16 '15 at 16:43
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Is MD5 still good enough to uniquely identify files?
...sions before storing the value.
I personally like to create md5 of random strings, which reduces the overhead of hashing large files. When collisions are found, I iterate and re-hash with the appended loop counter.
You may read on the pigeonhole principle.
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Downloading a Google font and setting up an offline site that uses it
...links in url() to your path to font files.
And then replace your example string with:
<link href='opensans.css' rel='stylesheet' type='text/css'>
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